Home | Contents | Help   Raidhelp     Defining RAID Level 3 RAID Level 3 adds redundant information to a striped array with parallel access, permitting regeneration and reconstruction in the event of a disk failure. The redundant information (the parity data) is normally stored on one or more disks dedicated to data redundancy. RAID Level 3 provides for high transfer rates and high reliability and availability, at an inherently lower cost than RAID Levels which incorporate mirroring. RAID 3 has a low ratio of ECC (parity) disks to data disks giving a high efficiency rate. The control design is of a medium complexity but is extremely difficult and resource intensive to do as a software based solution. Next: Level 4 Related topics: Defining RAID Levels Understanding Parity   Raidhelp   RAIDhelp© Copyright 1999-2004 Antony Kershaw